Intellitec 50 Amp Smart EMS 900 Supplement

131 Eisenhower Lane North
Lombard, IL 60148
630.268.0010 / 1.800.251.2408
P/N 53-00684-200 Rev. A 071301
www.Intellitecsve.com
Intellitec
INSTALLATION & SERVICE MANUAL
TM
50 AMP Smart Energy Management System Model 900
50 AMP
SMART EMS
50 Amp EMS Display Panel
P/N 00-00684-000
22 33 44 55 6
DANGER: HAZARD OF ELECTRICAL SHOCK OR BURN. TURN OFF POWER SUPPLY ON THIS EQUIPMENT BEFORE WORKING INSIDE.
LINE 2LINE 1
SMARTENERGYMANAGEMENTSYSTEM
ENCLOSED ENERGY MANAGEMENT EQUIPMENT
MODEL900
50 AMP SERVICE
by
MADE IN THE U.S.A.
Intellitec
6 M
A
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M
A
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11
4L54
R
LISTED
USC
50 Amp EMS Distribution Panel
P/N 00-00767-000
CAUTION
TM
The 50 AMP SMART EMS Model 900 is a centralized power switching, fusing and distribuition center.
Power from the 120/240 volt power source is fed into the box. The potential of lethal electrical shock is
present in this box. Inadvertent shorts at this box could result in damage and/or injury. All servicing of
this box should be done only by a qualified Service Technician
Diagnostic tools required: Low current Test Light, Accurate Voltmeter (digital readout preferred)
Clamp-onAC ammeter.

131 Eisenhower Lane North
Lombard, IL 60148
630.268.0010 / 1.800.251.2408
P/N 53-00684-200 Rev. A 071301
www.Intellitecsve.com
Intellitec
INSTALLATION & SERVICE MANUAL
TM
50 AMP Smart Energy Management System Model 900
PRODUCT DESCRIPTION
TM
The 50 Amp Smart EMS Model 900 consists of two elements: the Display Panel and the Distribution Panel. The
Display Panel is mounted on a wall or suitable surface, remotely from the distribution panel and convenient to the user.
The Distribution Panel is a completely self-contained 120/240 volt power distribution and energy management system
intended to be used in recreational vehicles. It is housed in a sheet metal enclosure with removable front panel. It
provides circuit protection for all the 120 VAC loads in the RV and a system of energy management to minimize the over-
loading and tripping of circuit breakers.
TM
Circuit Breakers - the 50 Amp Smart EMS Model 900 Distribution Panel offers slots for eight single or dual, standard
120 volt circuit breakers. Two of these breakers, located in the two center stab positions, must be 50 Amp units that act as
a main input protection for each of the lines supplying the remainder of the branch breakers (up to 12).
TM
Energy Management - the 50 Amp Smart EMS Model 900 automatically senses the available power to the vehicle. It
determines whether it is connected to a 120 VAC - 30Amp shore power source, 240 VAC - 50Amp shore power source, or
Generator source. Depending upon available power, it controls the operation of 6 possible loads that may include: the
front and rear air conditioner fan, and compressor using low voltage switching, and other 120 Volt loads (such as the
refrigerator, water heater, washer/dryer, or other large appliances). These appliances may be any type load, but are
typically heavier loads, those whose use can be "postponed" until a time when current is available for their use.
HOW IT WORKS
TM
The 50 AMP SMART EMS Model 900 provides main circuit protection for 120/240 VAC split phase incoming lines and
branch circuit protection for up to 12 circuits, including Energy Management of up to six selected branch circuits. If 120
VAC - 30/20 Amp source is available, the control helps to limit the total current draw of all the appliances in the RV at or
below 30/20 Amps provided by the main power feed. If the Generator source is available, the control helps to limit the
total current draw of all the appliances in the RV at or below the rated current provided by the Generator, which is 45Amps
for gas-powered generators or 60 Amps for diesel-powered generators (installer selectable).
Circuit Protection:
Circuit protection for ALL the 120 VAC loads is offered by standard, reset-able circuit breakers, provided by the installer.
There are eight positions available for circuit breakers. The breakers located in the two center stab positions must be 50
Amp breakers to act as the main breakers for the entire system. These breakers back-feed power into the circuit breaker
bus to feed power to the branch breakers.The remaining six positions may be occupied by single, or dual units. All the
loads in the RV are fed from the branch breakers.
Energy Management:
Note - When connected to 50 Amp - 240 VAC Service the Energy Management features of the unit are disabled and the
unit switches all controlled loads"ON".
The main neutral line is routed through the magnetically coupled current sensor, which measures the current flowing
through the neutral line. This is the total amount being drawn by all the 120 volt appliances in the RV when the available
power service is 120 VAC. When this current exceeds the "shore" service rating of 30 Amps (20 Amps if the threshold has
TM
been set lower) or the generator service rating and 240 VAC service is not available, the 50 AMP SMART EMS will turn
off the controlled loads in an effort to bring the total current to the limit of the incoming service.
Controlled Loads:
The system offers control of up to six powered loads; each one connected to one of the relay circuits of the 50 AMP Smart
TM
EMS Model 900 system. Four of these relays: relays 1, 2, 3, and 4, are 30 Amp relays with normally-open contacts used
to interrupt the 120 volt power to the loads. These circuits are intended to control 120 volt appliances such as refrigerator,
water heater, washer/dryer, coffee maker, etc.
For the 120 VAC switched loads, power is routed from the individual branch circuit breakers to one of these 120 VAC
relays on the Control Module. The controlled load is then fed from that relay.

131 Eisenhower Lane North
Lombard, IL 60148
630.268.0010 / 1.800.251.2408
P/N 53-00684-200 Rev. A 071301
www.Intellitecsve.com
Intellitec
INSTALLATION & SERVICE MANUAL
TM
50 AMP Smart Energy Management System Model 900
The remainder of the relays: relays 5 and 6, are intended to switch low voltage loads. Relays 5 and 6 are single-pole,
double-throw relays, with all contacts available. These relays are intended to control air conditioners, or other appliances
equipped with low voltage controls, or thermostats. The contacts of the relays are typically wired in series with the low
voltage controls or thermostats of air conditioners so the EMS turns off only the compressor, or the compressor and fan.
These circuits could also control other 120 volt appliances, if an additional control relay is added externally.
OPERATION IN VEHICLES USING AVAILABLE SERVICE
The EMS is turned on by the presence of 120VAC, or 240VAC at the L1 or L2 inputs (J6, pin 3 and 1 respectively). This
feature is intended to prevent the EMS from drawing current from the +12 VDC battery supply when not in operation.
When 120 VAC or 240 VAC power is applied, the system automatically powers up and determines the nature of the power
source. There is a two-minute start-up delay built into the system to prevent short-cycling of motor driven loads. During
this delay period, the Load Meter display will exibit rotating segments, indicating to the user that the system is in the delay
mode. After the initial two-minute delay, the unit will apply power to controlled loads sequentially, with a one-second delay
between each load to prevent power surges generated by simultaneous application of all loads.
If the generator is running, 120 VAC will be present at the L1 and L2 inputs and a +12 VDC signal will be present at J2 pin 2
on the Control Module. The EMS will assume that 120 VAC, 45 or 60 Amp Genset power is available and the energy
management feature will be enabled. The Control Module sends a signal to the Display Module causing the load meter to
display actual load current, the GEN SET service indicator to light and all power status indicators to light.
The generator source mode takes priority over all other modes; that is, if the generator is running, the EMS will operate in
that mode independent of the presence of other sources.
If 120 VAC is present at the L1 and L2 inputs and no +12 VDC signal is present at J2 pin 2 on the Control Module, theEMS
will assume that 120 VAC, 30Amp shore power is available and the energy management feature will be enabled. If only
20 Amp service is available, the user must select the 20AMP service mode by momentarily pressing the 20/30 Amp select
switch on the Control Panel.
If 240 VAC, 50 Amp service is available, the energy management feature is disabled and all control relay contacts are
closed, energizing all of the controlled loads. The Control Module sends a signal to the Display Module which causes the
load meter to go blank, the 50 AMP service indicator to light, and all power status indicators to light.
Initially, the control turns all loads on with a one-second interval and the total current is monitored. If the total current
should exceed the service limit, the system will turn off the first load in the shedding table. As it turns the loads off, it
calculates the amount of current that was removed, which is the value for that load. This value is placed in memory. If the
current remains above the service limit, the system will turn off the next load in the shedding table. Again, it calculates the
amount of current that was removed and places the value for that load in memory. The system continues to turn off loads
until the total current falls below the service limit, or all of the six controlled loads have been shed. Through this process,
the system has "learned" the amount of current that each particular load draws. This feature compensates for the
differences in current draw over a range of line voltage and ambient temperature, by re-learning the load each time it is
turned off or "shed".
TM
The 50 Amp Smart EMS Model 900 now waits until the total current is lower than the service limit and enough current is
available (as compared with the amount in memory for the last load shed) before it will turn that load back on. This assures
that there is sufficient current to operate the load.
Note: There is a two minute minimum delay period after a load is shed before the load will be turned back on again,
to prevent air conditioners from turning on with a head of pressure.

131 Eisenhower Lane North
Lombard, IL 60148
630.268.0010 / 1.800.251.2408
P/N 53-00684-200 Rev. A 071301
www.Intellitecsve.com
Intellitec
INSTALLATION & SERVICE MANUAL
TM
50 AMP Smart Energy Management System Model 900
DISPLAY PANEL
The Display Panel can be mounted remotely and connects to the main unit with a light gauge, four-wire cable. Six Power
Status LED's indicate power is applied to those loads. These LED's are on when the power is applied. The Load Meter
has a two-digit display to indicate the amount of current actually being drawn by all the appliances in the coach.
Four Service Type LED's indicate the source for 120/240 VAC power. Three of these sources are automatically detected
and indicated by the EMS, namely: Gen Set service, 50 Amp 240 VAC service, and 30 Amp 120 VAC service.
When 120VAC shore power is first applied, the system will always be in the 30
Amp mode. The 30/20 Amp indicator LED will be on when the system is in the 30
Amp mode.The 20 Amp service mode is not automatically detected and the
operator must manually select the 20 Amp mode, when 20 Amp service is
available. The Service Select button allows the current threshold to be set to
either 30 Amps or 20Amps, to match the incoming service.
If the pictured adaptor is used on the incoming service, press the service select
button to select the 20 Amp mode. Momentarily pressing this button again will
switch the system back to the 30Amp mode.
The Display Panel can also be used to display the value of current stored in memory for each of the six loads. To display
the values of current stored in memory for each of the six loads, push and hold the Service Select button. The uppermost
LED will illuminate and the stored value will appear on the Load Meter. Pushing Service Select again, will cycle to the next
load. After the last stored value has been displayed, the Load Meter will return to normal operation and display total
current draw.
INSTALLATION
The Control Module:
The first step when installing an EMS is to determine which loads will be controlled and in what order they will be shed. A
typical scheme would be to control the two air conditioners, the water heater and the washer/dryer. With these loads, the
first load to be shed should be the water heater, as it's loss of operation would be the least noticed (it would switch to
operate on gas, if needed). The next would be the bedroom air; the third would be the washer dryer and finally the main air.
Choosing this sequence would provide the least inconvenience to the occupants. User discretionary loads, such as
microwave ovens, coffee pots, hair dryers, etc. should never be considered as EMS controlled loads.
50 AMP
SMART EMS

131 Eisenhower Lane North
Lombard, IL 60148
630.268.0010 / 1.800.251.2408
P/N 53-00684-200 Rev. A 071301
www.Intellitecsve.com
Intellitec
INSTALLATION & SERVICE MANUAL
TM
50 AMP Smart Energy Management System Model 900
The EMS Control Module has three jumpers on the board that determine the order of shedding of the loads. These
jumpers are labeled JP2, JP3, and JP4 (See figure below). An additional jumper, JP1, is reserved to configure the control,
to differentiate whether a gas or diesel powered generator is installed. If JP1 is installed, the control will be configured to
control loads based on the 45 Amp current rating for a gas powered generator. Removal of JP1 configures the control to
control loads based on a 60 Amp current rating for a diesel powered generator.
These jumpers are all installed at the factory. Removing JP2, JP3, or JP4 will alter the order of shedding to suit the
particular need of the installation. The following tables will assist in determining the proper settings for the three jumpers.
The first step is to fill in the blanks with the names of the loads you want the system to shed, in the order they are to be shed,
with the first to be shed at the top. Then, fill in the second "Load Type" column, with an "A" or a "D"; an "A" for a 120 VAC
controlled load such as a washer/dryer, or a "D" for DC controlled load, such as a thermostat wire. You can select a
maximum of 4 AC and 2 DC relays.
1
1
1
MCU
JP1
JP2
JP3
JP4
J3
J2
F1
J5
J1
HI POT
TESTING
ONLY
REMOTE
DISPLAY
CONNECTOR
J4
50 AMP EMS CONTROL MODULE - LOW VOLTAGE CONNECTION SIDE
LOAD NAME
(First to Shed at Top) LOAD
TYPE

131 Eisenhower Lane North
Lombard, IL 60148
630.268.0010 / 1.800.251.2408
P/N 53-00684-200 Rev. A 071301
www.Intellitecsve.com
Intellitec
INSTALLATION & SERVICE MANUAL
TM
50 AMP Smart Energy Management System Model 900
Next, looking across the other eight columns, find the one that matches the "Load Type" column you just filled in.
Using the number at the top of the column, look in the table below to determine the settings of the three jumpers, JP2, JP3,
and JP4. A "Y" (for yes) means the jumper should be installed and an "N" (for no) means there should not be a jumper
installed.
At the bottom of each column is the Relay Shed Order. This determines which relays will be used for each load. The one
at the top of the column is first to be shed. The one below it will turn off next, and so forth. The loads MUST be wired in this
order for the system to operate as desired.
Finally, the number and size of the circuit breakers should be selected to meet the needs of the installation. The breakers
can be either single or dual types. Two of these breakers MUST be 50 Amp units to act as the Main breakers. The
breakers must be obtained and then installed in the box. (See information on breaker types later in this manual.)
COLUMN
NUMBER
RELAY
SHED
ORDER
(Top is
First Shed)

131 Eisenhower Lane North
Lombard, IL 60148
630.268.0010 / 1.800.251.2408
P/N 53-00684-200 Rev. A 071301
www.Intellitecsve.com
Intellitec
INSTALLATION & SERVICE MANUAL
TM
50 AMP Smart Energy Management System Model 900
Distribution Panel:
The EMS Distribution Panel should be installed in a convenient location where it can get air circulation to keep it from
over heating. There should be a minimum of 7" of depth behind the mounting surface to provide enough room for the
box and wiring.
A hole should be cut in the mounting panel as shown.
This opening must be cut carefully to be sure the mounting screws will have enough wood to hold and there is enough
clearance around the box for the front cover screws.
The wiring to the box should be routed through the holes in the back and secured using approved cable connectors. The
wires should be copper conductors ONLY, with the appropriate size and insulation to meet N.E.C.
The main supply cable should be brought through the large hole in the lower center of the box and secured with an
appropriate connector. The "LINE 1" and "LINE 2" supply mains should be connected to the corresponding main breaker.
The main ground lead should be connected to the nearest GROUND bar terminal strip. The current sensor should be
mounted in a knock-out hole near the insulated NEUTRAL block, so that the signal leads from the current sensor exit the
rear of the box. These signal wires should be routed through the lower right hole into the low voltage section of the EMS
and connected to J3, a 2 pin connector on the low voltage side of the Control Module.
The main NEUTRAL wire should be routed through the CURRENT SENSOR and connected to an appropriate position on
the insulated NEUTRAL block.
There are 8 positions for the circuit breakers in the box. The circuit breakers can be single or dual types. The breakers in
the two center positions must be 50 Amp to be used as the Main Breakers.
The following breakers are suitable for MAIN and BRANCH breakers:
Bryant - BR, BD, GFCB, Filler Plate FP-1B
ITE Gould - QP, QT, Filler Plate QF3
The replacement circuit breakers must be of the same type and rating.
9 1/8” +/- 1/8”
15 ½” +/- 1/8”
DISTRIBUTION PANEL CUTOUT

131 Eisenhower Lane North
Lombard, IL 60148
630.268.0010 / 1.800.251.2408
P/N 53-00684-200 Rev. A 071301
www.Intellitecsve.com
Intellitec
INSTALLATION & SERVICE MANUAL
TM
50 AMP Smart Energy Management System Model 900
Branch circuit wires should be routed through the remaining knock-out holes in the back of the box. The wires should be
stripped and the ground wire of each cable connected to the GROUND bar terminal strip. The white or neutral wires
should all be connected to the NEUTRAL bar terminal strip. The black, or "hot" leads of all the uncontrolled loads should
be connected to their associated breakers. Each terminal screw should be tightened to 35 in.-lb. of torque. (See the box
drawing.)
If removed during installation, the white jumper wire should be re-installed between the NEUTRAL block and J6,
terminal 5 of the EMS module labeled "NEUTRAL". (See box drawing, page 15.)
TM
NOTE: To insure proper operation of the source sensing circuitry on the 50AMP EMS Model 900, jumper wires
must always be connected from a line 1 breaker to J6 terminal 3, and from a line 2 breaker to J6 terminal 1. These
connections must be made even though Relay 1 or Relay 2 may not be used for controlled loads.
The black wires to the controlled loads should be connected to the proper relay output screw terminals of J6 and J7
on the EMS control module. Be sure these wires are under the screw terminals and that they are tight.
The connections are as follows:
J6 Terminal Function
1 From Circuit Breaker for Relay 2 (Must be connected to a LINE 2 Breaker)
2 Output of Relay 2
3 From Circuit Breaker for Relay 1 (Must be connected to a LINE 1 Breaker)
4 Output of Relay 1
5 Neutral
J7 Terminal Function
1 Output of Relay 3
2 From Circuit Breaker for Relay 3
3 Output of Relay 4
4 From Circuit Breaker for Relay 4
NOTE: J6 and J7 terminal blocks - Will accept up to 12 GA or 14 GA copper wire ONLY.

131 Eisenhower Lane North
Lombard, IL 60148
630.268.0010 / 1.800.251.2408
P/N 53-00684-200 Rev. A 071301
www.Intellitecsve.com
Intellitec
INSTALLATION & SERVICE MANUAL
TM
50 AMP Smart Energy Management System Model 900
The 12 VDC voltage connections are made through J2, a 3 pin Mate-N-Lok connector on the low voltage side of the
control module. The +12 volts should be supplied from a source fused at 3 Amps minimum and capable of delivering
up to 1 Amp of AVERAGE current. Protecting this connection with a higher rated fuse is acceptable since the EMS is
internally protected with a 3 Amp fuse. The connections are as follows:
J2 Pin Function
1 + 12 Volts
2 Gen Set Run Input
3 Ground
The low voltage controlled load connections are made through J4, a 6 pin Mate-N-Lok connector on the low voltage side of
the control module. The connections are as follows:
J4 Pin Function
1 Relay 5 Normally Open
2 Relay 5 Common
3 Relay 5 Normally Closed
4 Relay 6 Common
5 Relay 6 Normally Closed
6 Relay 6 Normally Open
The low voltage controlled load relay connections are typically made to the thermostat wires of the air conditioners. The
normally open contacts are wired in "series" with the thermostat. This means that the thermostat wire is cut and the two
ends are wired to the Common and the Normally Open contacts of the relay/s. In this way, the EMS can interrupt the
operation of the compressor just as the thermostat does. The low voltage wires are brought into the box through the large
hole in the lower right-hand corner of the back of the box.
There are several methods to utilize Relay 5 and 6 connections for controlling air conditioner systems with the
EMS:
1) If only the compressors of the front and rear A/C's are to be controlled, connections are typically made to the low voltage
compressor control wires of the air conditioners. The normally closed contacts are wired in "series" with the compressor
control lead. This means that the compressor control wire is cut and the two ends are wired to the Common and the
Normally Closed contacts of Relay 5 or 6. In this way, the EMS can interrupt the operation of the compressor, just as the
thermostat does.
2) If both the compressors and fans of the front and rear A/C's are to be controlled, connections are typically made to the
low voltage thermostat control wires of the air conditioners. The normally closed contacts are wired in "series" with each
thermostat control lead. This means that the thermostat control wire is cut and the two ends are wired to the Common and
the Normally Closed contacts of Relay 5 or 6. In this way, the EMS can interrupt the operation of the compressor and fans,
just as the thermostat does.
3) If the compressor and fan for one of the A/C systems are to be controlled individually, connections are typically made to
the individual low voltage thermostat control wires for the fan and compressor of the air conditioner. The Relay 6
connections are typically made to the low voltage compressor control wires of the air conditioner to control the
compressor. The normally closed contacts are wired in "series" with the compressor control lead. This means that the low
voltage compressor control wire is cut and the two ends are wired to the Common and the Normally Closed contacts on
Relay 6. The Relay 5 connections are typically made to the low voltage thermostat control wires of the air conditioner to
control the fan. The normally closed contacts are wired in "series" with the thermostat control lead. This means that the
low voltage thermostat control wire is cut and the two ends are wired to the Common and the Normally Closed contacts on
Relay 5. In this way, the EMS can interrupt the operation of the fan, just as the thermostat does.
Finally, on the Control Module, there is a small 2 pin plug labeled J1 which is only used for the High Pot Test on the system.
When the two pins are shorted together, the EMS will operate without the presence of 120 VAC.

131 Eisenhower Lane North
Lombard, IL 60148
630.268.0010 / 1.800.251.2408
P/N 53-00684-200 Rev. A 071301
www.Intellitecsve.com
Intellitec
INSTALLATION & SERVICE MANUAL
TM
50 AMP Smart Energy Management System Model 900
Now the EMS should be moved into the mounting hole, being careful not pinch any of the wires. It should be screwed in
place using four # 8, round head screws into the 4 holes in the side flanges. The front cover should be secured into place
with the 6 screws provided in the holes in the top and bottom flanges.
Display Panel:
Select a convenient location for the panel, where it can be easily viewed by the owner.
Cut a hole for the panel as shown.
A two-foot long double-ended pigtail is available, as Intellitec P/N 11-00589-002. This pigtail may be cut in half and up to
40 feet of additional cable may be spliced into the harness. Route the harness from the hole for the display panel to the
EMS. Plug the cable into J5 on the EMS Control Module, assuring it is properly seated on all four pins.
(Note: This cable is polarized, the latches of each end of the connector mate to each other and will go on easily in the
right direction, but can be forced on in the reverse direction.)
The Display Panel should be plugged onto the harness, observing the polarity as before. The panel should then be
installed in the hole and screwed in place using two # 6, flat head screws through the holes in the panel. A white function
label should be lettered to correspond to the order of load shedding and installed behind the cover label. The cover label
should be placed against the front panel and the trim bezel snapped on to hold the label in place.
PERFORMANCE TEST
The system is now ready for testing.
Hi-POT TEST:
At the installers preference, to asSure there are no potential shorts, a Hi-Pot test can be performed on the installation. To
do this, +12 volts must be applied to the system. A jumper wire must be installed to tie the two pins of the
"Hi-Pot Test" plug, J1, to turn the system on without the presence of 120 volt power. This plug is located on the right side of
the EMS Control module. After the initial two-minute start-up delay, the relays on the module should be heard clicking as
they pull in. On the Display Panel, the LED's should light and the numeric display should read "0". The Hi-Pot test should
now be conducted in accordance with standard procedures for the tester being used. Assuming the system passes, the
covers should be taken off and the jumper removed from J1. If not, the problem must be corrected before proceeding
further.

131 Eisenhower Lane North
Lombard, IL 60148
630.268.0010 / 1.800.251.2408
P/N 53-00684-200 Rev. A 071301
www.Intellitecsve.com
Intellitec
INSTALLATION & SERVICE MANUAL
TM
50 AMP Smart Energy Management System Model 900
SYSTEM TEST:
All the 120 volt loads should be turned off or disconnected. Both 120VAC 30 Amp shore power (an adapter must be used
to connect the 30A source) and 12 volt DC power should now be applied to the system. Initially, there will be a two-minute
start-up delay. When this is done, the relays should be heard pulling in at approximately one second intervals . On the
Display Panel, the numeric display should read "0", the six Power Status LED's should come on, and the "30Amp" Service
Type LED should light. A clamp-on type ammeter should be used to measure the current being supplied by the 30 Amp
shore power cord.
Connect or turn on one of the controlled AC loads. It should operate and the numeric display or the clamp-on ammeter
should show the amount of current that load is drawn. Turn that appliance off and repeat this with each of the others.
To test the load shedding, turn on all the controlled appliances. The total current drawn should exceed 30 Amps.
(If not, add additional loads to the non-controlled receptacles.) When the total amount of current exceeds 30 Amps, the
loads should begin to turn off to bring the total below 30 Amps.
FUSES
F1 - 3 Amp ATO type, for EMS Control Module circuitry only. DO NOT replace with a fuse of higher rating. This could
result in severe damage to the circuitry or create a possible fire hazard.
EMS CONTROL MODULE PLUGS, PINS, AND FUNCTIONS:
J1 = 2 pin Molex KK-100 connector - HI-POT TEST Power Up
Pin Function
1 Hi-Pot Override
2 Hi-Pot Override
J2 = 3 pin Amp Mate-n-Lok connector - Power connector
Pin Function
1 +12 Volts Supply
2 +12 Volts Gen-Set Run input
3 Chassis Ground
J3 = 2 pin Molex KK-156 - Current Sensor Connector
Pin Function
1 Current Sensor Input
2 Current Sensor Input
J4 = 6 pin Amp Mate-n-Lok connector - Control Relays 5 & 6 contacts
Pin Function
1 Relay 5 N.O.
2 Relay 5 COM.
3 Relay 5 N.C.
4 Relay 6 COM.
5 Relay 6 N.C.
6 Relay 6 N.O.

131 Eisenhower Lane North
Lombard, IL 60148
630.268.0010 / 1.800.251.2408
P/N 53-00684-200 Rev. A 071301
www.Intellitecsve.com
Intellitec
INSTALLATION & SERVICE MANUAL
TM
50 AMP Smart Energy Management System Model 900
EMS CONTROL MODULE PLUGS, PINS, AND FUNCTIONS (continued)
J5 = 4 pin Molex KK .156 - Display Panel Connector Mating Housing Molex 09-50-3041
Pin Function
1 Power
2 Data
3 Ground
4 30/20 Amp Select Line
J6 = 5 Position Terminal Block
Term Function
1 From Circuit Breaker for Relay 2 (Must be connected to a LINE 2 Breaker)
2 Output of Relay 2
3 From Circuit Breaker for Relay 1 (Must be connected to a LINE 1 Breaker)
4 Output of Relay 1
5 Neutral
J7 = 4 Position Terminal Block
Term Function
1 Output of Relay 3
2 From Circuit Breaker for Relay 3
3 Output of Relay 4
4 From Circuit Breaker for Relay 4
NOTE: J6 and J7 terminal blocks - Will accept up to 12 GA or 14 GA copper wire ONLY.

131 Eisenhower Lane North
Lombard, IL 60148
630.268.0010 / 1.800.251.2408
P/N 53-00684-200 Rev. A 071301
www.Intellitecsve.com
Intellitec
INSTALLATION & SERVICE MANUAL
TM
50 AMP Smart Energy Management System Model 900
Trouble Shooting
If the following problems occur, proceed with analysis in the order in which these steps are listed.
I. No 120 volt appliances working.
A. Check incoming power source.
1. Make sure the shore power cord is plugged into the outlet.
2. Check the circuit breaker at the shore power outlet to be sure it is set. Turn it off and then
back on to be sure.
3. Check the 50 Amp Main circuit breakers in the EMS Distribution Panel to be sure they are set.
Turn them off and then back on to be sure.
4. Using a circuit checker, be sure the 30Amp shore power outlet has 120 volts available.
B. Check Change-Over relay, if so equipped.
1. Measure the voltage at the incoming side of the Main 50 Amp breaker. If voltage is NOT
the same as the incoming line, repair the change-over. (Refer to the change-over service
literature for trouble shooting.)
II. 120 volts available at non-controlled appliances and receptacles. Controlled appliances do not operate.
A. Check the 12 volt power to the EMS module.
1. Check 12 volt, 3 Amp fuse on EMS Control Module. Replace if necessary.
B. Check 120 volt circuit breakers in EMS.
1. Reset circuit breakers if necessary.
2. Check for presence of voltage at branch circuit breakers with voltmeter.
3. Check for presence of voltage at EMS terminals with voltmeter.
4. Check wire from EMS Control Module to neutral bar is installed.
III. Some controlled appliances turn on, others do not.
A. Reduce total current, appliance may be shed.
B. Check wiring to and from EMS Control Module.
1. Check wiring from circuit breakers to EMS Control Module.
2. Check wiring from EMS Control Module to controlled appliance.
3. Check for power at associated EMS relay terminal.
IV. Branch circuit breaker trips when power is applied.
A. Check wiring for shorts.
V. Air conditioner doesn't work.
A. Check thermostat wiring and settings.
B. Check air conditioner

131 Eisenhower Lane North
Lombard, IL 60148
630.268.0010 / 1.800.251.2408
P/N 53-00684-200 Rev. A 071301
www.Intellitecsve.com
Intellitec
INSTALLATION & SERVICE MANUAL
TM
50 AMP Smart Energy Management System Model 900
Trouble Shooting
VI. Shedding order incorrect.
A. Check jumper setting per Figure on page 5 and Tables on page 6.
B. Check relay wiring per Table on page 6.
VII. Remote Display out or strange characters are displayed.
Check wiring between J5 on EMS Control Module and Display Panel.
Pin Function Voltage
1 Power 12V
2 Data Ground
3 Ground Ground
4 Select Line Ground, 12V when pressed
Wiring 1 1 2 2 3 3 4 4
Both the EMS Control Module and Display Panel have internal protection. Shorts or miswiring should not cause
the units to fail.
VIII. Remote Display does not indicate "GEN SET" service source when generator is running.
Check wiring between generator run light circuit and J2 pin 2 on EMS Control Module. J2, pin 2 should
measure +12VDC or greater when generator is running and 0 VDC, otherwise.
VIX. Remote Display does not indicate "50 AMP" service source when 50 Amp 240 VAC shore power is
connected.
Check to make sure that jumpers are present between any LINE 1 breaker and J6 terminal 3, and any LINE 2
breaker and J6 terminal 1. Also check that the "NEUTRAL" jumper is in place, between J6 terminal 5 and a
position on the NEUTRAL block.
With "50 Amp" service available the voltage between J6-3 and J6-1 should measure 240 VAC. With any other
source the voltage between J6-3 and J6-1 should measure 0 VAC. In addition, the voltage measured between
J6-3 and J6-5 should be 120 VAC and the voltage measured between J6-1 and J6-5 should be 120 VAC.

131 Eisenhower Lane North
Lombard, IL 60148
630.268.0010 / 1.800.251.2408
P/N 53-00684-200 Rev. A 071301
www.Intellitecsve.com
Intellitec
INSTALLATION & SERVICE MANUAL
TM
50 AMP Smart Energy Management System Model 900
BRKR #2 RELAY #2 BRKR #1 RELAY #1 NEUTRAL
LINE 2 LINE 1
LINE1
LINE2
12 VOLT SIDE
EMS
CIR 3
50A 50A
EMS
CIR 1
EMS
CIR 2
EMS
CIR 4
J3 To Current Sensor
120/240 VOLT SIDE
BRKR #4 RELAY #4 BRKR #3 RELAY #3
EMS Controlled Loads 1HP, 15A, 1 2 0 VA C , 60 H Z
ENERGY MANAGEMENT
CONTROL ELECTRONICS
BARRIER
RELAY #5 N.O.
RELAY #5 COM
RELAY #5 N.C.
RELAY #6 COM
RELAY #6 N.C
RELAY #6 N.O.
Remote Display Connector
AIR-CONDITIONERS
THERMOSTAT LEADS
LOAD 1.0A, 24VDC
OPTION JUMPER: SEE OWNERS GUIDE
J5
J2
+12 VOLTS +12V GEN RUN GROUND
_
INSULATED NEUTRAL
All 120/240 VAC Neutral current must
pass thru EMS Current Sensor.
50/30A
MAIN
J1 Hi-Pot Test
CURRENT
SENSOR
1 2 3
1 2 3 4 5 6
TYPICAL WIRING DIAGRAM
LINE 1
GROUND BLOCKS
LINE 2
NEUTRAL

131 Eisenhower Lane North
Lombard, IL 60148
630.268.0010 / 1.800.251.2408
P/N 53-00684-200 Rev. A 071301
www.Intellitecsve.com
Intellitec
INSTALLATION & SERVICE MANUAL
TM
50 AMP Smart Energy Management System Model 900